package
{
	import flash.external.ExternalInterface;
	
	import root.TestRoot;
	
	public class TestCallExternal extends TestRoot
	{
		public function TestCallExternal()
		{
			super();
			var ret:* = ExternalInterface.call("changeTitle","my title");
			if (ret == null)
				trace("invoke failed");
			else
				trace("invoke suc:"+ret);
		}
	}
}